About Us


A Cross-Disciplinary Approach

We are a company who uses cross-disciplinary approaches to design, produce and distribute multimedia content that gets ideas adopted. Our privately held firm was founded in 2013 and is headquartered in Kansas City. From the heartland, we serve clients across the globe.

Our Team

Our Speakers

Sharing the Practice of Idea Adoption

Storytelling is about creating human connection. The Overflow approach magnifies the human connection through story structure, organizational change principles and diffusion of innovation theory. Tammy and Bill welcome the opportunity to share the shape of story and the process of change.


Tammy Broaddus

Bill -headshots-2018-12 square

Dr. Bill Hendricks
Strategist & Senior Storyteller

Tammy Broaddus

Chief Executive Officer

Tammy specializes in strategy, marketing, organizational change and corporate learning. Prior to Overflow, she operated her own consulting practice and has twenty years of cross-functional experience as an executive at Hallmark Cards. Tammy is an adjunct professor in Entrepreneurship, a non-profit board member, community volunteer, wife and mother of two. She holds a master’s degree in Education from Kansas University and bachelor’s in Marketing from Truman State University.

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Jeff Short

Chief Creative Officer

Jeff specializes in creative direction and storytelling through various creative methods. He manages teams of cinematographers, photographers, designers, and writers. He began his career in marketing, and then ran his own successful videography company. He is an EMMY award-winning videographer, who has led creative campaigns in digital storytelling and multimedia across the U.S. and abroad.



Michelle McSpadden

Chief Experience Officer

Michelle specializes in strategic meeting planning, incentive travel and live event design. An industry leader known for operational excellence and client retention, she has led multiple teams to deliver some of the most successful national sales meetings, product launches and incentive travel campaigns across the globe. Prior to joining Overflow, she served as President of a privately held firm that grew to be named to the CMI 25 list of Top Meeting and Incentive Agencies in North America for more than seven consecutive years, among other accolades. Michelle is an active member in the Society for Incentive Travel Excellence (SITE), Meeting Professionals International (MPI) and carries the credentials of Certification in Meeting Management (CMM).



Erica Short

Content Strategist

Erica understands all sides of content strategy from storyline creation through multi-media production. She has a degree in public relations, held a previous career in copywriting, and is a talented photographer and video editor who ran her own company for 10 years prior to Overflow. She is an expert in story structure and multimedia story production.



Dr. Bill Hendricks

Strategist and Senior Storyteller

Bill specializes in idea adoption and leads development of workshops for Story Lab. For more than 30 years he has worked to help people and organizations close the gap between strategy and operations. Dr. Hendricks has worked with corporate giants and small startups; founded an international consulting business and managed change in 13 different countries. His bachelors was completed at the University of Northern Iowa, master’s degree at Asbury Theological Seminary and his doctorate from the University of Dubuque focused on personality assessment and conflict management. He lives in Overland Park, Kansas, with his wife, Jacki, son Scott and a house full of dogs.



Andrea Allen

Senior Executive Producer

Andrea specializes in high-end event production both in-person and virtual. Her production prowess includes event design and creation, production planning, and execution of large-scale events, festivals, corporate functions, red carpet events, concerts, and comedy specials. Andrea has successfully produced events and broadcasts in US markets and internationally in Kuwait, Brazil, Canada, England, South Africa, China, India, and South Korea. Andrea’s attention to detail and dedication to each project has earned her the respect of notable clients.



Zach Cole

Technical Director

Zach's expertise is both technical and creative. He serves as a technical director and web designer for virtual meetings, and is a graphic designer. For over a decade creating in Chicago, Brooklyn and now Kansas City, he takes a strong, genuine and personal interest when it comes to client's dreams and enjoys offering his strategic thinking and design process to get them there. Zach believes in doing lasting work that is both effective and inspiring which is why so many enjoy working with him. Simply put, Zach enjoys what he does, and it shows. 



Sami Freese

Experience Coordinator

Sami believes in creating positive, productive experiences for clients and guests. As an Experience Coordinator, she aims to deliver clear concepts and communications from start to finish. Sami’s broad experience in customer-facing hospitality, outreach, registration systems and customer relationship management offer a comprehensive understanding of the needs of both event organizers and attendees.



Ashley Harper

Director of Accounts and Operations

Ashley partners with clients to drive strategic change through adoption and facilitates workshops for Story Lab. More than 20 years’ experience has offered Ashley the opportunity to work in a variety of industries, in the U. S. and abroad, for the Fortune 500, nonprofit and fast-growing tech company. Prior to Overflow she operated her own consulting practice, drove strategy execution for the software division of Lexmark, and managed cross-functional strategic initiatives with Accenture. Ashley is a mentor with UMKC's Regnier Institute for Entrepreneurship and a non-profit board member. She holds an MBA from the University of Kansas and a bachelor’s in Journalism and Mass Communication from Washington & Lee University.



Cindy Knudsen

Campaign Field Reporter

Cindy is a multimedia creative who specializes in campaign communications at Overflow, telling thematic stories with depth and breadth to elevate the narrative around a specific topic and increase awareness. She is passionate about using her talents to connect with people and bring their stories to life. She is skilled in a variety of multimedia tools, including videography, photography, motion graphics and animation.



Ryan Zimmer


Ryan is a talented filmmaker and motion graphics artist. He produces multimedia content with an eye for detail and a vast knowledge of all things technical. Ryan thrives on developing new skills to create richer stories, and loves combining the creative process of filming with the finesse of editing a final product.



April Anderson

Sourcing Specialist



Paul Mackender


Paul uses his talents as a digital artist to produce an endless array of hand drawn imagery. He leverages his experience as a painter to unite modern methods of digital illustration with today’s graphic recording techniques, producing Overflow’s emblematic storyboards. By reaching into a wide breadth of mediums, Paul creates original and compelling visuals for every story.



Hector Garcia

Concept Illustrator-Designer

Hector is an experienced designer and illustrator whose varied background enables him to address problem solving from different points of view. His experience as a designer of museums and exhibits, as well as retail environments allows him to turn simple spaces into immersive experiences. With his ability to listen and quickly sketch and draw, he creates visual content that helps our clients and partners visualize concepts. He uses this skill in graphic recording, capturing ideas and concepts in front of a live audience and creating compelling storyboards.